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137116-57-5

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137116-57-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137116-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,1,1 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 137116-57:
(8*1)+(7*3)+(6*7)+(5*1)+(4*1)+(3*6)+(2*5)+(1*7)=115
115 % 10 = 5
So 137116-57-5 is a valid CAS Registry Number.

137116-57-5Relevant articles and documents

Solid-phase synthesis of RNA via a silyl-protecting-group strategy

Dreef-Tromp, C. M.,Dam, E. M. A. van,Elst, H. van den,Boogaart, J. E. van den,Marel, G. A. van der,Boom, J. H. van

, p. 378 - 383 (2007/10/02)

Ribonucleoside phosphoramidites have been prepared of which the exocyclic amino functions and 2'-hydroxyl functions are protected with 2-benzoyl groups, respectively.The N-SiOMB/O-TBDMS-blocked nucleosides proved to be suitable building units in a solid-phase synthesis of the RNA-fragment 5'-AGAGUACCU-3' via a phosphite triester approach.

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